Ellie O Ryan Books

How to Defend Your Dragon DreamWorks Dragons

By Ellie O Ryan

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Felicity Fox s Wild Wonderwood Adventure

By Ellie O Ryan

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One morning at the palace, Jasmine overhears a surprising conversation. A servant claims that there is no fruit to be found in all of Agrabah! Jasmine heads to the market to figure out what has hap...

Phineas and Ferb

By Ellie O Ryan, Dan Povenmire, Marsh Jeff

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Una de historia antigua

By Ellie O Ryan

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By Ellie O Ryan

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By Ellie O Ryan

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Care Bears Christmas wishes

By Ellie O Ryan

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When Wish Bear get sick, the Care Bears must find a way to make their Christmas wishes come true.

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.